Question

In Linux, there are separate APIs like the APIs from RTAI that need to be used if we want to make use of the real-time extensions.

Are there specific APIs that need to be used if we want to make use of the real-time features of Windows Embedded Compact?

Edit:
This time I don’t really need to make application for WinCE, I just need to make comparison (for school assignment).

Answer 1

There are misperceptions among some software developers about the
Windows Embedded Compact’s real-time capability. In general, you
should look at the real-time behavior from a total system point of
view, including the OS, hardware, BSP, device driver, and application
that make up the complete system.

The Windows Embedded Compact 7 OS is developed to meet hard real-time
requirements, and to support timing-critical applications. To take
advantage of Compact 7’s hard real-time capability, applications
created for the Compact 7 device must be written to meet the
requirements and adhere to the hard real-time development principle.

An embedded device built with Compact 7 OS, or any other real-time OS,
does not automatically inherit the real-time behavior. A Compact 7
device can be rendered to lose its real-time behavior when the
application or BSP for the device is poorly written, or not intended
to be in real time.

(Source: Professional Windows Embedded Compact 7, CHAPTER 14 APPLICATION DEVELOPMENT | page 175 | 2011 | ISBN: 978-1-118-05046-0)

Description of Real-time capabilities in Windows CE 6.0 is well explained in this webinar: Windows Embedded CE 6.0 – Real Time Capabilities, including some APIs that are specific to Windows Embedded Compact.